#include <unistd.h>
#include <sys/types.h>
#include <stdio.h>
#include <fcntl.h>

void main( int argc, char** argv )
{
	int fd;			/* file descriptor */
	int rval;		/* return value */
	char buf;		/* character buffer */

	/* parse arguments */
	if( argc < 2 )
	{
		printf( "error: please provide filename\n" );
		printf( "usage: %s filename\n", argv[0] );
		return;
	}

	/* open specified file for reading */
	fd = open( argv[1], O_RDONLY );

	/* make sure open successful */
	if( fd < 0 )
	{
		printf( "error: unable to open %s\n", argv[1] );
		return;
	}
	
	/* print contents to screen */
	printf( "\n[start]\n\n" );

	while( rval = read( fd, &buf, sizeof( buf ) ) > 0 )
	{
		printf( "%c", buf ); 
	}

	printf( "\n[end]\n" );

	/* close file */
	close( fd );
	return;
}